Hydropa DS-11 Series User manual

BA-KDS/GER/2010-REV1

BA-KDS/GB/2017-REV2
HYDROPA®is a registered trademark of HYDROPA Hydraulische
Erzeugnisse GmbH & Cie. KG.

Operating Manual / Piston Pressure Switch
BA-KDS/GB/2017-REV2 1
Contents
1General information ....................................................................................................... 3
1.1 For operating personnel ................................................................................................... 3
1.2 Liability.............................................................................................................................. 3
1.3 For improved understanding of this manual ..................................................................... 3
2Safety............................................................................................................................... 4
2.1 Correct use ....................................................................................................................... 4
2.2 Qualifications of personnel ............................................................................................... 4
2.3 Basic safety instructions ................................................................................................... 4
2.3.1 General information.......................................................................................................... 4
2.3.2 During installation............................................................................................................. 4
2.3.3 Instructions relating to electrical connection .................................................................... 5
2.3.4 Maintenance..................................................................................................................... 5
2.3.5 Cleaning ........................................................................................................................... 5
2.3.6 Instructions relating to environmental damage ................................................................ 5
2.3.7 Disposal............................................................................................................................ 5
3Structure and function................................................................................................... 6
3.1 Structure ........................................................................................................................... 6
3.2 Function............................................................................................................................ 6
3.3 Adjusting elements ........................................................................................................... 6
3.4 Rating plate....................................................................................................................... 7
4Transportation and storage........................................................................................... 8
4.1 Transportation .................................................................................................................. 8
4.1.1 Instructions relating to transportation............................................................................... 8
4.1.2 Dimensional and weight specifications ............................................................................ 8
4.2 Storage ............................................................................................................................. 8
5Technical data................................................................................................................. 9
6Installation..................................................................................................................... 10
6.1 General information ........................................................................................................ 10
6.2 Prior to installation .......................................................................................................... 10
6.2.1 Required installation material and auxiliary equipment.................................................. 10
6.2.2 Required tools ................................................................................................................ 10
6.3 Installing the pressure switch ......................................................................................... 10
6.3.1 Standard G1/4“ internal thread version (DS-3** / DS-4** series)................................... 11
6.3.2 Standard G1/4“ internal thread version (DS-11* / DS-5** series) .................................. 11
6.3.3 Flange version................................................................................................................ 11
6.3.4 Flange version with intermediate plate (PZ-***) ............................................................. 12
6.3.5 Flange version with 90° elbow connection plate............................................................ 12
6.3.6 Panel installation version ............................................................................................... 12
6.4 Electrical connection....................................................................................................... 13
6.4.1 Connecting the pressure switch ..................................................................................... 13
6.4.2 Terminal assignment...................................................................................................... 13
6.4.3 Earthing the pressure switch.......................................................................................... 13
6.4.4 Cable socket................................................................................................................... 14
6.4.5 Contact protection .......................................................................................................... 14

Operating Manual / Piston Pressure Switch
2 BA-KDS/GB/2017-REV2
7Commissioning.............................................................................................................15
7.1 Operation ........................................................................................................................ 15
7.1.1 Switching point setting (by manufacturer, only on request)............................................ 15
7.1.2 Switching point setting for rising pressure (by customer)............................................... 15
7.1.3 Switching point setting for failing pressure (by customer) .............................................. 15
8Dismantling, replacement and decommissioning.....................................................16
8.1 Dismantling ..................................................................................................................... 16
8.2 Replacement...................................................................................................................16
8.3 Spare parts...................................................................................................................... 16
8.4 Decommissioning............................................................................................................ 16
8.5 Disposal .......................................................................................................................... 16
8.6 Troubleshooting .............................................................................................................. 17
9EC Declaration of Conformity......................................................................................17

Operating Manual / Piston Pressure Switch
BA-KDS/GB/2017-REV2 3
1 General information
1.1 For operating personnel
This operating manual provides you with information on the safety, structure, function and
operation of the pressure switch.
If heeded carefully, the manual will ensure long and reliable operation free of malfunctions.
Applicable documents
EC Declaration of Conformity (see appendix)
1.2 Liability
Any liability on the part of HYDROPA®with regard to defects and liability claims is rendered void in
the event of damages resulting from incorrect use and unilateral interventions not foreseen in this
operating manual.
Please refer to the HYDROPA®General Business Terms and Conditions for details of liability for
material defects.
Unilateral structural changes to the pressure switch are not permitted for reasons of safety.
1.3 For improved understanding of this manual
DANGER
This hazard warning label indicates an immediate and major hazard which will
definitely result in severe injuries or even fatalities if the hazard is not avoided.
WARNING
This hazard warning label indicates a potential hazard which can result in severe
injuries or even fatalities if the hazard is not avoided.
CAUTION
This hazard warning label indicates a potentially hazardous situation which can
result in medium or light injuries or material damage if it is not avoided.
NOTE
This label indicates helpful information.
(Cross-references are indicated with italics.)

O
p
4
2
p
erating Ma
2
Safety
2.1 Co
r
A
dhere t
o
Correct u
s
Basic saf
e
sales dep
A
ny use
o
prohibite
d
This pres
s
Correct u
s
the hee
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the hee
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2.2 Qu
a
Commiss
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associate
therefore
supervisi
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A
skilled
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experien
c
identify p
o
relevant
s
2.3 Ba
s
G
e
2.3.1
Changes
installatio
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operating
the super
o
The safet
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ll operat
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e
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Cables
cold, o
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Ensure
preven
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a
nual / Pisto
r
rect use
o
the perfor
m
s
e also requ
e
ty instructi
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o
ther than or
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ure switch i
s
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s
d
ing of all m
a
a
lificatio
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i
oning requi
r
d technical t
e
only be entr
u
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n of a skille
d
w
orker is so
m
c
e and knowl
o
tential haz
a
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pecific tech
n
s
ic safety
e
neral info
r
to the hazar
d
n
of the pre
s
instructions
o
rdinate op
e
y
instruction
s
ors are obli
g
e
ssure switc
h
a
tions or co
n
a
tion of Conf
o
e
ssure switc
h
a
l data for t
h
e
ssure switc
h
e
xchanging
d
m
e electrical
ned.
ty equipme
n
e
d regularly
u
ring insta
l
e
vant plant
s
n
g/dismantlin
the plant se
and lines s
h
z
one, etc.).
prior to co
m
t
any liquid
e
n Pressure
m
ance limits
s
ires that you
o
ns
”
, and tha
t
any doubt.
beyond this
r
or operator
s not suitabl
e
des:
s
tructions in
t
a
ndatory, pr
o
n
s of pers
o
r
es fundame
n
e
rminology.
u
sted to a s
u
d
worker wh
o
m
eone who,
edge of per
t
a
rds and tak
e
n
ical rules.
instructi
o
r
mation
d
potential
m
s
sure switch.
for the plan
t
e
rating manu
s
are design
e
g
ed to read t
h
h
should onl
y
n
versions of
o
rmity and
o
h
should onl
y
h
e respectiv
e
h
is not suita
d
efective co
m
and mecha
n
n
t, fixing ele
m
to ensure th
a
l
lation
s
ection shou
l
g the press
u
ction agains
t
h
ould be laid
m
missioning
t
e
merging.
Switch
s
pecified in t
h
have read t
h
t
you have u
is consider
e
bears respo
e
for operati
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t
he operatin
g
o
hibition and
o
nnel
n
tal electric
a
In order to e
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itable skille
d
o
has receiv
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on the basi
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inent regula
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suitable sa
f
o
ns
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ay arises a
s
Therefore,
t
t
in which th
e
al be read a
n
e
d to avoid i
h
ese safety i
y
be used in
t
he pressur
e
o
perating pe
r
y
be used wi
t
e
pressure s
w
ble for use i
n
m
ponents, th
n
ical data, a
s
m
ents and el
e
a
t they are i
n
l
d always be
u
re switch.
t
reactivatio
n
in a manne
r
hat all conn
e
he technical
his manual
c
nderstood e
v
e
d as incorr
e
o
nsibility for
a
o
n in a pote
n
g
manual
warning sig
n
a
l and hydra
u
nsure opera
d
worker or
a
e
d regular tr
a
s
of his tech
n
t
ions, can e
v
f
ety measur
e
s
a result of
t
t
his operatin
g
e
pressure s
w
nd understo
o
njuries and
d
nstructions
a
a technicall
y
e
switch sho
u
r
mit null and
thin the perf
o
w
itch.
n
a potential
l
ese should
o
s
safety and
t
e
ctrical con
n
n
a flawless
c
e
relieved of
p
n
.
r
that preven
t
e
ctions are
c
data.
c
ompletely,
p
v
erything th
e
e
ct and is, co
a
ll damage r
e
n
tially-explo
s
n
s
u
lic knowled
g
tional liabilit
y
a
n instructed
a
ining and i
n
n
ical training,
v
aluate the
w
e
s. A skilled
w
t
he interacti
o
g
manual do
w
itch is inst
a
o
d.
d
amage to t
h
a
nd heed th
e
y
flawless co
u
ld be avoid
e
void.
o
rmance ra
n
l
y explosive
e
o
nly be repl
a
t
he function
c
n
ections, ca
b
c
ondition.
p
ressure an
d
t
s them bein
c
orrectly fitte
d
BA
-
p
articularly c
h
e
rein. Pleas
e
nsequently,
e
sulting fro
m
s
ive environ
m
g
e and kno
w
y
, these task
person und
e
n
struction.
know-how
a
w
ork entruste
w
orker shou
o
n which occ
es not repla
c
a
lled. It is im
p
h
e plant and
e
m at all tim
e
ndition.
e
d, as these
n
ge specified
e
nvironmen
t
a
ced with ori
g
c
an otherwi
s
les and line
s
d
de-energiz
e
g
damaged
(
d
and unda
m
-
KDS/GB/201
h
apter “2.3
e
contact ou
r
expressly
m
incorrect u
s
m
ent.
w
ledge of
k
s should
e
r the
a
nd
e
d to him,
ld adhere to
c
urs followin
g
c
e the
p
erative that
environmen
t
e
s.
render the
E
d
in the
t
.
g
inal parts
w
s
e not be
s
should be
e
d prior to
(e.g. heat,
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aged to
7-REV2
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s
e.
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t
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w
ith

BA-K
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2.3
.
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o
c
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m
2.3
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2.3
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a
2.3
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D
I
D
S/GB/2017-
R
Instru
c
.
3
E
lectrical wo
r
G
erman safe
t
o
f his technic
an evaluate
Maint
e
.
4
T
he pressure
witching poi
n
O
peration sh
o
m
anner.
Cleani
n
.
5
C
lose all ope
n
ontaminant
s
N
ever use so
brous fabric
a
ppropriate,
a
D
o not use hi
Instru
c
.
6
F
ollowing de
c
a
ccordance
w
Dispo
s
.
7
I
SPOSAL
D
n
T
R
EV2
c
tions rela
t
r
k should onl
t
y regulation
al training, k
the work en
t
e
nance
switch doe
s
n
ts should b
e
o
uld be cea
s
n
g
n
ings with s
u
s
can penetr
a
lvents or ag
g
for cleaning
a
mild cleani
gh-pressure
c
tions rela
t
c
ommissioni
n
w
ith legal re
g
s
al
D
ispose of t
h
n
ational regu
T
he compon
e
t
ing to ele
c
y be realise
d
s
(BGV A2),
now-how an
t
rusted to hi
m
s
not require
e
checked a
t
s
ed immedia
t
u
itable safet
y
a
te the syste
g
ressive cle
a
the pressur
e
n
g agent.
cleaners fo
r
t
ing to en
v
n
g, the pres
s
g
ulations. Le
g
h
e pressure
s
lations of yo
e
nt should n
o
c
trical con
d
by a traine
d
a skilled el
e
d experienc
e
m
and identi
f
any mainte
n
t
regular int
e
t
ely if the pr
e
y
devices to
m.
a
ning agent
s
e
switch. On
r
cleaning.
v
ironmenta
s
ure switch
s
g
al regulatio
n
s
witch in a p
r
ur country.
o
t be dispos
e
Ope
r
nection
d
skilled ele
c
e
ctrical work
e
e
and his kn
o
f
y potential
h
n
ance. How
e
e
rvals.
e
ssure switc
h
ensure that
n
s
. Only use a
ly use water
l damage
s
hould be re
c
n
s should b
e
r
ofessional
m
e
d of with h
o
r
ating Manu
a
c
trical worke
r
e
r is someon
o
wledge of
p
azards.
e
ver, we rec
o
h
fails to fun
c
n
o cleaning
m
mildly dam
p
for this pur
p
c
ycled or dis
e
heeded du
r
m
anner in co
o
usehold wa
s
al / Piston
P
r. According
n
e who, on t
h
p
ertinent reg
u
o
mmend tha
t
c
tion in an o
r
m
edia or ot
h
p
cloth mad
e
p
ose and, w
h
posed of in
r
ing disposa
l
mpliance wi
t
s
te.
P
ressure S
w
to
h
e basis
u
lations,
t
the set
r
derly
h
er
e
of non-
h
ere
l
.
t
h the
w
itch
5

Operating Manual / Piston Pressure Switch
6 BA-KDS/GB/2017-REV2
3 Structure and function
3.1 Structure
The piston pressure switch fundamentally consists
of the following components:
(1) Housing
(2) Microswitch
(3) Adjusting element
(4) Compression spring
(5) Spring plate
(6) Piston
(7) Nozzle
3.2 Function
The pressure switch functions on the basis of
the piston-spring principle. The microswitch (2)
is actuated if the pressure lies below the
configured value. The piston (6) acts against
the spring plate (5) when pressure builds up.
This braces itself against the continuously-
adjustable compression spring (4). The piston
(6) transfers the force onto the spring plate (5)
when the configured pressure is reached on
the nozzle (7), enabling the microswitch (2)
and triggering an electrical signal. The
pressure to be monitored is determined by the
preload tension of the spring (4). Adjustment is
achieved by turning the adjusting element (3).
Anticlockwise rotation reduces the switching
pressure, while turning in a clockwise direction
increases the switching pressure. The
adjusting element (3) is fixed with the securing
screw and fixing cover. A mechanical stop
prevents the compression spring (4) from
seizing due to excessive turning.
3.3 Adjusting elements
Three adjusting elements can be selected for
setting the pressure.
•The adjusting screw cover
•The adjusting knurl with scale
•The lockable adjusting knurl with scale
(except for DS-11* series)

Operating Manual / Piston Pressure Switch
BA-KDS/GB/2017-REV2 7
3.4 Rating plate
The rating plate is affixed to the pressure switch housing.
Field
no. Field designation Customer specifications
1 Type key e.g.: DS 307
2 Switching pressure
range
e.g.: PV = 10-100 bar
3 Max. operating
pressure
e.g.: Pmax = 400 bar
4 Pressure default e.g.: Pfix = 70 bar
5 Electrical connection e.g.: max. .24V DC 5A
max. 250V AC 5A
6 Switch symbol e.g.: DS 302 DS 307
NOTE
Please state the order number in the event of malfunctions, when ordering
spare parts and prior to calling our customer service department.

O
p
8
4
p
erating Ma
4
Transp
4.1 Tr
a
In
s
4.1.1
General
s
Di
m
4.1.2
Dimensio
n
pressure
s
CAUTI
O
4.2 St
o
The pres
s
following
c
•Do not
•Protect
•Cover
w
•Followi
n
NOTE
a
nual / Pisto
ortation
a
a
nsportati
o
s
tructions
s
afety instru
c
m
ensional
n
al and wei
g
s
witch.
O
N
Impact
i
transp
o
o
rage
s
ure switch
c
c
riteria:
store in the
o
against risi
n
w
ith film to p
r
n
g opening,
HYDR
O
month
s
n Pressure
a
nd stor
a
o
n
relating to
c
tions should
and weig
h
g
ht specifica
t
i
ng and sev
e
o
rtation.
c
an be store
d
o
pen. Alway
s
n
g damp: sto
r
otect again
s
transportati
o
O
PA
®
must
b
s
or sea tran
s
Switch
a
ge
transport
a
be observe
d
h
t specific
a
t
ions can be
e
re vibration
d
at the fact
o
s
store unde
re in a shelf
s
t dust and d
o
n packagin
g
b
e consulted
s
portation.
a
tion
d
during tra
n
a
tions
found in the
should be a
v
o
ry for up to
s
e
r a roof or in
system or o
n
d
irt.
g
should be
c
in the case
n
sportation.
technical d
a
v
oided wher
e
s
ix months i
n
a well-venti
n
a wooden
c
losed again
of storage f
o
BA
-
a
ta for the re
s
e
possible d
u
n
complianc
e
l
ated room.
p
allet.
correctly fo
r
o
r periods lo
n
-
KDS/GB/201
s
pective
u
ring
e
with the
r
storage.
n
ger than si
x
7-REV2
x

Operating Manual / Piston Pressure Switch
BA-KDS/GB/2017-REV2 9
5 Technical data
Technical data is contained in the data sheet for the respective pressure switch and on the rating
plate.

O
p
10
6
p
erating Ma
6
Install
a
6.1 Ge
n
DANG
E
6.2 Pri
o
Extrem
e
functio
n
Condu
c
R 6.2.1
Fixing
h
(diamet
e
1)
A torqu
e
be underst
tightening
t
R 6.2.2
Only com
6.3 Ins
t
DANG
E
WARNI
NOTE
a
nual / Pisto
a
tion
n
eral info
r
E
R of injur
y
It is im
p
observ
e
o
r to inst
a
e
cleanlines
s
n
of the com
p
c
t a visual in
s
equired in
s
h
ole
e
r in mm)
Ø5.5
e
spanner wit
h
ood as extre
m
t
orque. Coeffi
c
equired to
mercially av
a
talling th
e
E
R of injur
y
The rel
prior to
Use of
pressu
r
NG of risk
Excee
d
pressu
r
conse
q
The pr
e
protect
e
A
ll dim
e
techni
c
n Pressure
r
mation
y
and mat
e
p
erative that
e
d.
a
llation
s
should be
e
p
onents.
s
pection for
a
s
tallation
m
He
x
pu
r
70)
h
a tolerance
≤
m
ely rough an
d
c
ient of frictio
n
ols
a
ilable tools
e
pressur
e
y
and mat
e
evant plant
p
installing/di
s
the pressur
e
r
e Pmax is n
of injury
a
d
ing of the
m
r
e surges a
n
q
uences ran
g
e
ssure switc
h
e
d against p
e
nsions rele
v
c
al data for t
h
Switch
rial and e
n
the safety i
n
e
nsured, as
d
a
ny transpo
r
m
aterial a
n
x
agonal scr
e
r
suant to DI
N
M5
≤
10% should
b
d
non-binding
n
µ
total
= 0.14
l
and torque
s
e
switch
rial dama
g
p
art should
a
s
mantling th
e
e
switch is o
n
ot exceede
d
nd materi
a
ax. operatin
g
d the excee
d
g
ing from be
h
h
should be
ressure sur
g
v
ant to insta
l
h
e respectiv
e
n
vironmen
t
n
structions i
n
dirt leads to
r
tation dama
g
n
d auxiliar
y
r
ews
N 933 (A2 –
5
b
e used for ti
g
reference va
l
l
ightly oiled.
s
panners ar
e
g
e
a
lways be re
l
e
pressure s
n
ly permitte
d
d
(see techni
c
a
l damage
g
pressure
P
d
ing of temp
h
avioural ch
a
installed in
a
g
es to increa
l
lation and o
t
e
pressure s
w
t
al damag
e
n
chapter “ X 2 X X
S
malfunction
s
g
e and dirt.
y
equipme
n
Number
4/2
g
htening. The
l
ues. See VDI
e
required to
l
ieved of pre
s
w
itch.
d
in plants in
c
al data or r
a
P
max throug
h
erature limit
a
nges to da
m
a
low vibrati
o
se the servi
c
t
her informa
t
w
itch.
BA
-
e
S
afet
y
X “ on p
a
s
and can im
n
t
Maxim
u
torque
i
s
pecified tigh
t
2230 for the
c
install the p
r
s
sure and d
e
which the m
a
ting plate).
h
pressure p
values lead
m
age.
n environm
e
c
e life.
t
ion can be f
o
-
KDS/GB/201
a
ge 4 are
m
pair the reli
a
u
m tighteni
n
i
n Nm1)
4.2
t
ening torque
s
c
alculation of
r
essure swit
c
e
-energized
ax. operatin
g
p
eaks and
to
e
nt and
f
ound in the
7-REV2
a
ble
n
g
s
can
the
c
h.
g

BA-K
D
T
6.
3
T
h
th
a
(s
e
th
e
s
e
6.
3
T
h
in
s
di
r
Ø
5
6.
3
Fi
x
in
mi
D
S/GB/2017-
R
Threaded flange A/
hreaded flange A/F
2
Stand
a
3
.1
h
e standard
G
a
t the instal
l
e
e Fig. 1). F
i
e
unit plug (
s
e
parately) (s
e
Fig.
Stand
a
3
.2
h
e installati
o
s
talling the
D
r
ectly on th
e
5
.3mm throu
Fi
g
Flang
e
3
.3
x
the pressu
r
the case of
ssing or da
m
R
EV2
F24
2
7
a
rd G1/4“ i
n
G
1/4“ intern
a
l
ation span
n
i
xing option
s
s
ee Fig. 2)
o
e
e Fig. 3).
1:
a
rd G1/4“ i
n
o
n spanner
(
D
S-5** seri
e
e
housing w
h
gh-holes (s
e
g
. 4:
e
version
r
e switch to
t
low pressur
e
m
aged durin
g
M5x10mm deep
n
ternal thr
a
l thread ver
s
er (A/F 27)
s
are provid
e
o
r Ø5.5mm t
h
F
i
n
ternal thr
(
A/F 24) sh
o
e
s (see Fig.
h
en installin
e
e Fig. 5).
t
he flange p
r
e
ranges an
d
g
installation
ead versi
o
s
ion can be
is only app
e
d by two M
5
h
rough-hole
s
Fi
g. 2:
ead versi
o
ould also o
4). The in
s
g the DS-1
1
r
ovided usin
g
d
normal op
e
.
Ope
r
Ø5.3m
m
o
n (DS-3**
/
mounted dir
e
lied to the t
h
5
x10mm dee
s
in conjunc
t
o
n (DS-11*
/
n
ly be appl
i
tallation sp
a
1
* series. Fi
x
Fi
g
g
two or four
e
rating condi
r
ating Manu
a
m
Ø5,
5
DS-4** se
r
e
ctly on a pi
p
h
readed fla
n
p threaded
h
ion with an
a
Fig
/
DS-5** se
ed to the t
h
a
nner (A/F
3
x
ing option
s
g
. 5:
screws. Tw
o
t
ions. Ensur
e
al / Piston
P
5
mm
ries)
p
e connecti
o
n
ge during i
n
h
oles locate
d
a
dapter plat
e
g
. 3:
e
ries)
hreaded fla
n
3
0) should
b
s
are provid
e
o
screws ar
e
e that the o-
P
ressure S
w
360° rotateable
o
n. Ensure
n
stallation
d
opposite
e
(ordered
n
ge when
b
e applied
e
d by two
e
sufficient
ring is not
w
itch
11

O
p
12
p
erating Ma
Switch pa
Ø3
6
Fl
a
6.3.4
The flang
e
NG6 (PZ-
Fl
a
6.3.5
Pa
6.3.6
a
nual / Pisto
nel cutout
6
mm
a
nge versi
o
e
version ca
-
6/1/**) or N
G
a
nge versi
o
nel install
a
n Pressure
M5x10mm
d
o
n with int
n be used in
G
10 (PZ-10/
*
o
n with 90
°
a
tion versi
Switch
d
eep
e
rmediate
conjunction
*
*) sandwich
°
elbow co
n
on
plate (PZ-
*
with an inte
arrangeme
n
n
nection
p
*
**)
r
mediate pl
a
n
ts.
late
BA
-
te (ordered
s
-
KDS/GB/201
s
eparately)
f
7-REV2
f
or

BA-K
D
6.
D
6.
4
T
h
c
o
o
p
sh
in
t
wi
t
sh
O
b
6.
4
T
h
m
o
c
o
Te
r
Te
r
6.
4
E
n

D
S/GB/2017-
R
4 Electric
D
ANGER o
f
Conne
4
.1
h
e electrical
o
mpliance wi
p
erating reg
u
h
ould be o
b
t
roducing an
d
t
h regulatio
n
h
ort circuitin
g
b
serve the 5
Termi
n
4
.2
h
e pressure
s
o
del type A .
o
nnection op
t
r
minals 1-2: co
n
r
minals 1-3: co
n
Earthi
n
4
.3
n
sure that th
e
The prote
c
electrical
c
R
EV2
al conne
c
f
hazardou
Electrical w
o
worker.
cting the
p
connection
th prevailin
g
u
lations (e.g
.
b
served. Po
w
d
screwing t
h
n
s to conne
c
g
and interru
p
electrical s
a
n
al assign
m
s
witch is del
i
Please refe
t
ions.
n
tact breaks if
p
n
tact makes if
p
n
g the pre
s
e
pressure s
w
c
tive earth (
P
c
onnection.
c
tion
s electric
a
o
rk should b
e
p
ressure s
w
should be
g
safety and
for cable c
r
w
er supply
h
e connecti
o
c
tion termin
a
p
tions.
a
fety rules:
-Disc
o
-Sec
u
-Ens
u
-Eart
h
-
Cov
e
part
s
m
ent
vered from
t
r to the tec
p
ressure rises
ressure rises
s
sure swit
c
w
itch is ade
q
P
E ) should
a
l voltage!
e
entrusted
e
w
itch
established
accident p
r
ross-section
conforming
o
n cable tha
t
a
ls. Ensure
5 Safet
y
o
nnect
u
re against rea
c
u
re that the unit
h
and short circ
e
r or cordon off
s
.
t
he factory
w
c
hnical data
c
h
q
uately eart
h
be connect
e
Ope
r
e
xclusively t
o
by a skille
d
r
evention re
g
s
, fuse prot
e
to EN 50
1
t
cable cond
u
that the co
n
y
Rules
c
tivation
is de-energize
d
uit
adjacent energ
w
ith a cable
s
for the res
p
T
e
T
e
h
ed:
e
d in compli
a
r
ating Manu
a
o
a trained s
k
d
electrical
g
ulations. P
e
e
ction, prote
c
1
78, SELV,
u
ctors are c
o
n
nection ca
b
d
ized
ocket confo
r
p
ective pres
s
e
rminals 1-3: co
e
rminals 1-2: co
n
a
nce with re
g
al / Piston
P
killed electri
c
engineering
e
rtinent inst
a
ctive earth
c
PELV. En
s
o
nnected in
a
b
le is not be
r
ming to EN
1
sure switch
o
ntact breaks if
p
ntact makes if
p
g
ulations for
P
ressure S
w
c
al
worker in
a
llation and
c
onnection)
s
ure when
a
ccordance
nt to avoid
1
75301-803,
for further
p
ressure rises
p
ressure rises
the
w
itch
13

O
p
14
p
erating Ma
C
a
6.4.4
C
o
6.4.5
The micr
o
order to
a
occur, a
a
to suit th
e
a
nual / Pisto
a
ble socke
t
Cabl
e
-
-
Cabl
e
-
-
Cab
-
-
-
Cab
-
-
-
M1
2
-
-
o
ntact prot
e
o
switches u
s
a
void dama
g
a
ppropriate
p
e
operational
n Pressure
t
e
socket confo
r
for cable diamet
e
torque for fixing
e
socket confo
r
for cable diamet
e
torque for fixing
le socket with
for 12 to 220V
A
ordering add-on
torque for fixing
le socket with
with LED/lamps
ordering add-on
torque for fixing
2
x1 cable soc
k
only available o
n
axial or 90° angl
e
ction
s
ed are des
g
e to the co
n
p
rotective ci
r
case in que
s
Switch
ming to EN 17
5
e
r Ø6-8mm
s
crew (M3) 0.4N
m
ming to EN 17
5
e
r Ø8-10mm
s
crew (M3) 0.4N
m
LED function
A
C/DC connection
DS-307/LED34-
3
s
crew (M3) 0.4N
m
LED function
insert for 24V, 12
0
DS-307/L-MP24-
s
crew (M3) 0.4N
m
k
et, 4-pole
n
request
ed version
igned for o
p
n
tacts cause
d
r
cuit (spark
s
s
tion.
5
301-803, mod
e
m
5
301-803, mod
e
m
display
voltages
3
50
m
display
0V or 220V
-
350 and DS-307/
m
p
eration wit
h
d by any in
d
s
uppression
e
l type A, PG9
e
l type A, PG11
L-MP220-350
h
both direct
d
uctive, cap
a
or current li
BA
-
and altern
a
a
citive and l
a
mitation) sh
o
-
KDS/GB/201
a
ting voltag
e
a
mp loads
w
o
uld be pro
v
7-REV2
e
. In
w
hich
v
ided

BA-K
D
7 C
o
W
7.1
7.1
.
Th
e
sti
p
7.1
.
1.
L
2.
R
3.
N
d
s
4.
T
R
7.1
.
1.
L
2.
R
t
o
3.
N
d
s
4.
T
R
D
S/GB/2017-
R
o
mmissio
W
ARNING o
T
c
T
w
T
c
Operatio
Switchin
g
.
1
e
switching
p
ulated on th
e
Switchin
g
.
2
L
oosen the fi
x
R
egulate the
N
ow increas
e
esired switc
h
teps 2 to 3
u
T
hen fix the f
i
R
eadjustmen
Switchin
g
.
3
L
oosen the fi
x
R
egulate the
o
the max. o
p
N
ow lower th
e
esired switc
h
teps 2 to 3
u
T
hen fix the f
i
R
eadjustmen
Step 1
Step 1
R
EV2
ning
f risk of in
j
T
he correct
c
ommissioni
n
T
he pressur
e
w
ho have re
a
T
he pressu
r
c
ompare the
n
g
point se
t
points are
e
rating plat
e
g
point se
t
x
ing screw/fi
x
system pre
s
e
the system
h
ing pressu
r
u
ntil the micr
o
i
xing screw/
f
t may be ne
c
g
point se
t
x
ing screw/fi
x
system pre
s
p
erating pre
s
e
system pr
e
h
ing pressu
r
u
ntil the micr
o
i
xing screw/
f
t may be ne
c
j
ury and m
pressure
s
n
g.
e
switch sh
o
a
d and unde
r
r
e switch s
h
technical da
t
ting (by m
set by the
e
with Pfix.
t
ting for ri
s
x
ing cover
w
s
sure to a va
l
pressure sl
o
r
e. Correct if
o
switch trigg
f
ixing cover
a
c
essary afte
r
t
ting for fa
i
x
ing cover
w
s
sure to a va
l
s
sure of the
e
ssure slowl
y
r
e. Correct if
o
switch trigg
f
ixing cover
a
c
essary afte
r
S
aterial da
m
s
witch instal
o
uld only be
r
stood the o
p
h
ould only
a
ta in the dat
a
anufactur
e
manufactur
e
s
ing press
u
w
ith the aid o
f
lue clearly b
e
o
wly and ob
s
necessary
w
g
ers at the d
e
a
nd check th
r
fixing.
i
ling pres
s
w
ith the aid o
f
lue clearly a
b
respective p
y
and obser
v
necessary
w
g
ers at the d
e
a
nd check th
r
fixing.
Step 2-3
Step 2-3
Ope
r
m
age
lation shou
l
commissio
n
p
erating ma
n
be operate
a
sheet in th
e
r, only on
e
r to the v
a
u
re (by cu
s
f
a hexagon
a
e
low the de
s
s
erve wheth
e
w
ith the aid
o
e
sired switc
h
e switching
p
ure (by cu
f
a hexagon
a
b
ove the de
s
ressure swit
v
e whether t
h
w
ith the aid
o
e
sired switc
h
e switching
p
r
ating Manu
a
d be insp
e
n
ed by train
e
n
ual.
d
within s
p
is respect).
request)
a
lues specif
i
s
tomer)
a
l socket sp
a
s
ired switchi
n
e
r the micro
s
o
f the adjusti
n
ing pressur
e
p
ressure set
t
s
tomer)
a
l socket sp
a
s
ired switchi
n
c
h at the m
o
h
e microswit
c
o
f the adjusti
n
ing pressur
e
p
ressure set
t
S
St
e
al / Piston
P
e
cted prior
ed skilled p
e
p
ecifications
f
ied in the
o
a
nner.
n
g pressure.
s
witch trigge
r
n
g element.
e
.
t
ting again.
a
nner.
n
g pressure,
o
st.
ch triggers
a
n
g element.
e
.
t
ting again.
S
tep 4
e
p 4
P
ressure S
w
t
o initial
e
rsonnel
(please
o
rder and
r
s at the
Repeat
but only
a
t the
Repeat
w
itch
15

Operating Manual / Piston Pressure Switch
16 BA-KDS/GB/2017-REV2
8 Dismantling, replacement and decommissioning
8.1 Dismantling
DANGER of injury and material and environmental damage
It is imperative that the safety instructions in chapter “X2XXSafetyX“ on page 4 are
observed.
The following points should be realised prior to dismantling for reasons of safety:
Deactivate the pressure switch and disconnect from the power supply network.
No cables, connections or components should be loosened as long as the plant is energized.
Loads on the plant should be lowered in advance, pressure accumulators, etc. relieved of
pressure, pumps deactivated and secured against reactivation. General safety regulations
should be observed (see chapter “X2XXSafety” on page X4X").
8.2 Replacement
The pressure switch to be used should exhibit the same parameters as the pressure switch to be
replaced.
8.3 Spare parts
Spare parts can be ordered on the basis of the parts list or rating plate.
The order should be forwarded to the following address, stipulating the order number:
HYDROPA®
Därmannsbusch 4
D-58456 Witten (Herbede)
Telephone [phone]
Fax [phone]
Internet: www.hydropa.de
E-mail: [email protected]
8.4 Decommissioning
The following should be observed when decommissioning the pressure switch:
Dismantling work should only be entrusted to a trained skilled electrical worker (see section
“X2.2XXQualifikation des PersonalsXon page X4X);
8.5 Disposal
Thoughtless disposal of the pressure switch can lead to environmental pollution.
Residues on the pressure switch can, depending on the medium used, pose a danger to skilled
personnel and the environment. Appropriate safety measures should be taken where necessary
and the pressure switch disposed of correctly.
DISPOSAL
Dispose of the pressure switch in a professional manner in compliance with the
national regulations of your country.
The component should not be disposed of with household waste.

Operating Manual / Piston Pressure Switch
BA-KDS/GB/2017-REV2 17
8.6 Troubleshooting
Error Possible cause Error detection / Remedy
No signal from pressure
switch No power supply Check power supply (skilled electrical worker)
No signal from pressure
switch, or pending signal
does not drop off
Defective microswitch
Check with the aid of a measuring device whether a
switching cycle occurs during pressure change
between the contacts on the pressure switch (skilled
electrical worker)
No signal from pressure
switch, or pending signal
does not drop off
Mechanical defect
(e.g. piston)
Check with the aid of a measuring device whether a
switching cycle occurs during pressure change
between the contacts on the pressure switch (skilled
electrical worker)
No signal from pressure
switch, or pending signal
does not drop off
Adjusting element
unscrewed too far
Screw in the adjusting element somewhat and
check the switching point
Switching point
displacement
Material wear (compression
spring)
Readjust the switching point (see chapter “7
Commissioning” on page 15)
Pressure switch oily Internal leakage flows Remove the pressure switch as described in chapter
“8 Dismantling” and forward it for inspection
Pressure switch exhibits
leaks on connection
thread
Mechanical damage Remove the pressure switch as described in chapter
“8 Dismantling” and forward it for inspection
9 EC Declaration of Conformity
The unit delivered meets legal requirements. Directives, harmonised standards and documents
applied are listed in the EC Declaration of Conformity valid for the product. The operational
reliability and safety of the unit is also confirmed by the CE symbol on the rating plate